KR20230022702A - A non-slip outsole composition comprising coconut fiber and a method for manufacturing the same - Google Patents

Abstract

The present invention relates to a non-slip outsole composition comprising coconut fiber and, more specifically, to a non-slip outsole composition comprising 30 to 40 parts by weight of polybutadiene rubber, 20 to 30 parts by weight of an elastomer, 15 to 20 parts by weight of a filler, 20 to 30 parts by weight of coconut fiber, 0.1 to 1 part by weight of a surfactant, 0.2 to 1 part by weight of a vulcanization accelerator, and 0.5 to 2 parts by weight of a crosslinker. In addition, the preparation method of a non-slip outsole comprising coconut fiber according to the present invention comprises the steps of: dividing coconut into a coconut peat part and a coconut fiber part to remove and crush foreign substances to prepare coconut fiber; mixing the prepared coconut fiber with a rubber binder mixture to form a non-slip outsole composition; molding the above-mixed outsole composition into a mold to prepare and process an outsole shape; cooling and aging the molded and processed outsole to finish the outsole. Accordingly, non-slip performance can be enhanced.

Description

A non-slip outsole composition comprising coconut fiber and a method for manufacturing the same}

The present invention relates to an outsole comprising coconut fibers included in the outer shell of a coconut and a method for manufacturing the same.

Shoes are developed to be worn to protect the wearer's feet, and as the quality of life improves in modern society, the perception of shoes is also changing a lot.

Modern footwear is a situation in which functional shoes specialized for various purposes such as hiking shoes, sneakers, soccer shoes, tennis shoes, baseball shoes, golf shoes, and fashion shoes are being developed according to the needs of users.

Shoes largely include an upper part that protects the user's instep and joint parts and an outsole part that comes into contact with the bottom surface. In particular, in the case of the outsole portion, shock can be transmitted to the body during the walking process of the wearer, and when the outsole portion is heavy, the user can easily feel fatigued, so the outsole portion can buffer and absorb shock and is light. structure needs to be provided.

In this regard, in the case of shoes such as sports shoes, sneakers, and canvas shoes, appropriate elasticity and cushioning are required for the soles of shoes to improve wearing comfort and activity. Cell structure is formed by foam molding with various polymer binders. In the case of foam outsoles, various components such as surfactants, plasticizers, and foaming agents are added in addition to polymer binders, and the wear resistance and non-slip properties are determined according to the ratio.

On the other hand, the outsole structure can be largely divided into an insole, a midsole, and an outsole. Among them, the outsole, which is in direct contact with the ground, is the most sensitive part to the ground condition, and is You must be able to respond appropriately. In addition, when there is a lot of moisture on the road surface due to climate change, the non-slip function is more required.

In the case of the non-slip function, there is a difference in non-slip properties required according to the type of shoe. For example, in the case of mountaineering shoes, when the ground condition is irregular or the ground, such as a mountain or a valley, is often wet, the surface of the rock is often wet. Lack of function can cause serious damage to the human body. In addition, in the case of a workplace where the floor is always wet due to the nature of the place, such as a ship, the non-slip function is one of the essential functions.

In this regard, Korean Patent Registration No. 10-1740347 relates to a shoe sole member and a method for manufacturing the same by recycling coffee grounds. The obtained coffee ground powder is mixed with a binder to form a shoe sole. More specifically, in the case of the above patent, hydrolysis further refines the coffee grounds, denatures them into a softened form, and prevents aggregation of the coffee grounds, thereby enhancing the mixing with the fluid binder. However, in the case of this method, there is a risk in the manufacturing process because the coffee grounds are put into a strong acid solution to proceed with hydrolysis. In addition, even though the cleaning process is included, strong acids and strong bases are not completely removed, which can cause problems that can be harmful to the human body by stimulating the wearer's skin. In addition, in the case of the hydrolysis process, there is a problem in that a considerable amount of time and cost is required.

To improve this, Korean Patent Registration No. 10-2117196 discloses that the collected coffee grounds are hot-pressed to extract coffee oil, dried and pulverized, and mixed with a polymer resin to manufacture soles for shoes. In the case of the above method, there is no problem that is environmentally friendly and harmful to the wearer's body, but there is a disadvantage in that the use of the shoe is limited as the non-slip function of the shoe deteriorates as oil is included in the composition.

Republic of Korea Patent No. 10-1740347 Republic of Korea Patent No. 10-2117196

Therefore, in the present invention, it is a technical challenge to provide a non-slip outsole composition including coconut fiber that is environmentally friendly and does not cause chemical irritation to users, as well as excellent aesthetics and non-slip performance applicable to fashion shoes such as sneakers.

In addition, the present invention has another technical problem to provide a method for manufacturing a non-slip outsole including coconut fiber.

In order to solve the above technical problem, the present invention,

In the non-slip outsole composition containing coconut fiber, 30 to 40 parts by weight of polybutadiene rubber, 20 to 30 parts by weight of elastomer, 15 to 20 parts by weight of filler, 20 to 30 parts by weight of coconut fiber, 0.1 to 1 part by weight of surfactant, Provided is a non-slip outsole composition containing coconut fiber, containing 0.2 to 1 part by weight of a vulcanization accelerator and 0.5 to 2 parts by weight of a crosslinking agent.

Preferably, the coconut fiber is included in a length of 4 to 6 mm and is evenly dispersed / mixed in the outsole, characterized in that it has a non-slip property.

Preferably, the non-slip outsole composition further comprises 0.1 to 1 part by weight of a UV blocker and 0.1 to 1 part by weight of an anti-aging agent.

In order to solve the above other technical problems, the present invention,

A method for manufacturing a non-slip outsole including coconut fiber, comprising: preparing a coconut fiber by separating a coco peat part and a coconut fiber part from a coconut to remove and pulverize foreign substances; Blending a non-slip outsole composition by mixing the prepared coconut fiber with a rubber binder mixture; An outsole molding and processing step of manufacturing and processing the outsole shape by putting the blended outsole composition into a molding mold and molding it; and cooling the molded and processed outsole and finishing the outsole to mature.

Preferably, the step of blending the outsole composition is characterized in that it is dispersed at a temperature of 60 ~ 80 ℃.

The non-slip outsole composition including the coconut fiber according to the present invention produces an effect of improving the non-slip property as the outsole is manufactured by including the coconut fiber in the butadiene rubber and the elastomer. In addition, there is also a design effect by forming a marbling pattern as the coconut fibers are evenly dispersed.

In addition, the coconut fiber used in the present invention has an environmentally friendly effect without skin irritation even when directly exposed to the wearer's skin.

1 is a schematic diagram showing a manufacturing process of a non-slip outsole according to an embodiment of the present invention.
2 is a non-slip test result according to Test Example 1 of a non-slip outsole according to Example 1 of the present invention.
3 is a non-slip test result according to Test Example 1 of a non-slip outsole of Comparative Example 1 of the present invention.
4 is a non-slip test result according to Test Example 1 of a non-slip outsole of Comparative Example 2 of the present invention.
5 is a non-slip test result according to Test Example 1 of a non-slip outsole of Comparative Example 3 of the present invention.
6 is a test report result for one embodiment 1 of the present invention.

Hereinafter, the present invention will be described in detail.

In one aspect, the present invention relates to an outsole composition including coconut fiber, 30 to 40 parts by weight of polybutadiene rubber, 20 to 30 parts by weight of elastomer, 15 to 20 parts by weight of filler, 15 to 20 parts by weight of coconut fiber, surfactant 0.1 to 0.5 parts by weight, 0.2 to 0.5 parts by weight of a vulcanization accelerator, and 0.5 to 1.5 parts by weight of a crosslinking agent.

In the present invention, the polybutadiene rubber is used for various purposes such as automobile tires, hoses, tubes and wire coatings at home, and when used in combination with other rubbers, abrasion resistance, bending resistance, rebound elasticity and cold resistance are improved. It has excellent characteristics to be

In general, polybutadiene rubber preferably includes at least one of neodymium-based (Nd), cobalt-based (Co), nickel (Ni)-based, and titanium (Ti)-based catalysts according to required physical properties. In the present invention, a nickel catalyst is used. Used polybutadiene rubber was used. More preferably, polybutadiene rubber having an elongation at break of 500 to 520% and a tensile strength at break of 160 to 180 kgf/cm ² is preferably used. In addition, more preferably, the content of the polybutadiene rubber is preferably used in an amount of 30 to 40 parts by weight, which means that when the polybutadiene rubber is included in less than 30 parts by weight, the processability, elasticity and low-temperature characteristics of the shoe outsole are reduced, This is because when it is included in an amount of more than 40 parts by weight, the durability of the shoe is reduced because the abrasion resistance and cracking resistance are reduced instead of increasing elasticity.

Next, the included elastomer not only improves non-slip properties by improving the friction of the outsole with the ground, but also exhibits non-slip properties even when the ground is wet by moisture. Additionally, the elastomer has a feature of easy processing due to easy shrinkage and easy processing fluidity. In addition, since it has a transparent color, it has a characteristic that it can be colored to the desired color through color mixing if necessary. However, in the case of adding the color, it is preferable not to impair the physical properties of the elastomer by blending within the ratio of 5 wt% based on the shoe outsole composition.

In addition, the elastomer is preferably included in 20 to 30 parts by weight, and when included in less than 20 parts by weight, the effect of improving the non-slip property on the ground in a wet state is insufficient, and when included in more than 30 parts by weight, wear resistance is reduced. Since a problem occurs, it is desirable to include an appropriate amount.

On the other hand, the filler has the effect of improving the wear rate and strength of the shoe outsole and improving the safety of the outsole. As an example of the filler, it is preferable to use at least one selected from the group consisting of silica, carbon black, white carbon, calcium carbonate, silicate, talc and mica, most preferably silica. In relation to the filler, it is preferably included in an amount of 15 to 20 parts by weight. This is because the wear rate of the outsole is reduced when it is included in less than 15 parts by weight, and the elasticity of the shoe is reduced when it is included in 20 parts by weight or more, so that the user may feel uncomfortable when wearing it for a long time.

Next, coconut fiber is the shell part of the coconut fruit, which is the fruit of the coconut tree. Recently, it is used as an eco-friendly flooring material for hiking trails and trails, or it is used in a variety of ways in living areas as a natural material, such as giving acupressure function when installed on barefoot trails. In relation to this, the coconut fiber is an eco-friendly material with little chemical defect rate, and has a delicate and thin fiber layer on the outside, while having a dense fiber layer of 2 to 5 cm on the inside. In the present invention, the length of the coconut fiber is reprocessed to 4 to 6 mm and 20 to 30 parts by weight are used. If the coconut fiber is included in less than 20 parts by weight, the non-slip property is not improved, and if it is included in more than 30 parts by weight, poly This is because the performance of butadiene rubber and elastomer is reduced and it is difficult to properly function as a shoe outsole because it is not evenly dispersed with the filler. In addition, if the length of the coconut fiber is less than 4mm, it is not preferable that the non-slip property is improved only when it is included in an excessive amount, and when it is included in more than 6mm, the dispersibility with rubber is lowered, and the defective rate may increase because the fiber is driven to one side.

Meanwhile, in the present invention, additives may include 0.1 to 1 part by weight of a surfactant, 0.2 to 1 part by weight of a vulcanization accelerator, and 0.5 to 2 parts by weight of a crosslinking agent. etc. can be included.

In the additive, it is preferable to use a cobalt-based (Co) surfactant and a nonylphenol (NPEs)-based surfactant as the surfactant. In this regard, the surfactant had a property of improving the tear property of the outsole instead of delaying the curing rate as the molecular weight increased. Therefore, in the present invention, 0.1 to less than 1 part by weight of nonylphenol-based (NPEs) surfactant was included. At this time, when the surfactant is included in less than 0.1 parts by weight, the effect of tearing properties is insufficient, and when it is included in more than 1 part by weight, productivity and mechanical properties are reduced as the curing time is prolonged, so it is preferable to keep it and include it. do.

Next, the vulcanization accelerator is a typical organic rubber additive used together with the anti-aging agent, and is added to the vulcanization process to impart elasticity to raw rubber, thereby accelerating the vulcanization rate and improving mechanical properties. Preferably, it is preferably included in an amount of 0.2 to 1 part by weight, but when it is included in less than 0.2 part by weight, the vulcanization accelerating effect is insufficient, and when it is included in more than 1 part by weight, the wear rate is reduced instead of increasing elasticity, so adjustment is required.

Dicumyl Peroxide (DCP) may be used as the crosslinking agent, and other conventional crosslinking agents such as PERKDOX may be used. More specifically, if the crosslinking agent is less than 0.5 parts by weight, there is a problem that unvulcanization occurs or productivity is reduced due to a long vulcanization time. Since the physical properties are lowered, it is preferable to include it in an appropriate composition.

In addition, the UV blocker has the effect of extending the life of the product and improving color preservation by blocking sunlight and preventing aging caused by ultraviolet rays. More preferably, it is preferable to use a nano-size blocking agent having an average particle diameter of 30 nm, and it is preferable to include 0.1 to 1 part by weight. This is because the UV blocker effect is insufficient when included in less than 0.1 parts by weight, and a sharp effect cannot be seen when included in more than 1 part by weight.

In addition, the anti-aging agent functions to block the chain reaction that accelerates rubber aging by cutting polymer chains or cross-linking when oxygen or ozone reacts with rubber. There are mainly aromatic amine and phenolic types. In the case of aromatic amine, it is particularly effective in preventing sunlight/ozone cracking and is effective in preventing bending cracks. In the case of phenolic, it is common to use as an antioxidant with a high molecular weight. Therefore, in the present invention, it is preferable to include 0.1 to 1 part by weight of an aromatic amine-based anti-aging agent. If it is included in less than 0.1 part by weight, the rubber anti-aging function is weak, and if it is included in more than 1 part by weight, mechanical properties are reduced. Because.

On the other hand, the total ratio of the additives is preferably less than 5 parts by weight, because if they are included in an amount of 5 parts by weight or more, acid resistance and chemical properties of rubber may change, which may affect durability of the outsole.

Meanwhile, as another aspect, the present invention relates to a method for manufacturing an outsole including coconut fiber. Specifically, preparing a coconut fiber by separating the coco peat part (outside) and the coconut fiber part (inside) of the coconut shell to remove and crush foreign substances (100); Blending an outsole composition by mixing the prepared coconut fiber with a rubber binder mixture (200); An outsole molding and processing step (300) of manufacturing and processing the outsole shape by putting the blended outsole composition into a molding mold and molding it; And a step (400) of cooling the molded and processed outsole and finishing the matured outsole (400).

Hereinafter, it will be described in more detail with reference to FIG. 1 .

First, it is the coconut fiber preparation step (100). More specifically, the coconut is separated into a coco peat part and a coconut fiber part, and the separated coconut fiber part is washed with water, aged for 24 to 48 hours, dried with hot air to remove moisture, and then subjected to a grinding process. At this time, the washing and aging process is a process for removing impurities from the coconut fiber, and the outsole defect rate can be minimized. In addition, the aging process is to facilitate crushing of the coconut fibers to have fibers of a similar size. In relation to this, the coconut fiber is pulverized to a size of 4 to 6 mm and then separated through a sieve to be evenly dispersed / mixed without entanglement with polybutadiene rubber and elastomer in the process of blending the outsole composition to be described later. will be.

The next process is a step 200 of blending an outsole composition by mixing the prepared coconut fiber with a rubber binder mixture including polybutadiene rubber, elastomer, and additives. More specifically, the mixing process is performed by adding additives and fillers to polybutadiene rubber and elastomer, mixing them for 10 to 15 minutes, and then adding the prepared coconut fiber and dispersing at a temperature of 60 to 80 ° C. for 10 to 20 minutes to obtain an outsole composition combine At this time, in the case of the dispersion temperature, the dispersibility of the pigment decreases when dispersed at a temperature of less than 60 ° C., and when dispersed at a temperature of 80 ° C. or higher, the dispersibility improves, but as the solvent in the binder evaporates, the viscosity increases and production loss As the rate increases, productivity and yield may decrease. Therefore, in order to secure a yield of 95 to 99%, it is preferable to carry out the dispersion in the above temperature range.

In relation to the dispersion, it is preferable to perform mill dispersion or high-speed dispersion, which can maximize the efficiency of the pigment by improving the uniform mixing of the coconut fibers and the dispersibility of the pigment. In addition, the pigment and coconut fiber evenly dispersed in the rubber binder mixture are designed to manufacture an outsole with improved non-slip properties.

On the other hand, the dispersed outsole composition is preferably manufactured in a sheet shape through a pressurization and cooling process at a temperature of 90 to 100 ° C. for smooth outsole production in the next molding process.

Next, an outsole molding and processing step (300) in which the outsole composition prepared by kneading is put into a mold, manufactured in the form of an outsole through a molding process, and the edges are finished. More specifically, the molding process is preferably formed by pressing at a temperature of 150 to 160 ° C for 5 to 10 minutes. This is because defects increase due to some heat when the temperature is 160 ° C or the time exceeds 10 minutes.

Finally, the outsole finishing step (400) of cooling and aging the molded outsole. At this time, the cooling process is preferably cooled at room temperature for more than 24 hours to prevent rapid contraction of the outsole, and more preferably, the cooled outsole is aged at room temperature for more than 150 hours, so that the inside and outside are completely hardened. As a result, it is possible to manufacture an outsole having excellent abrasion resistance and elasticity.

Hereinafter, the present invention will be described in more detail through examples, but the present invention is not limited thereto.

<Example 1> Manufacture of outsole containing coconut fiber

Polybutadiene rubber (LG Chem, BR-1208) 38.3 parts by weight, elastomer (manufacturer 'ASAHI KASEI', product name 'ASAPRENE-303') 25.5 parts by weight, silica (manufacturer 'EVONIK', product name 'SIPERNAT 238') 15.3 parts by weight , Surfactant (manufacturer 'ADEKA', product name 'PEP-8') 0.2 parts by weight, UV blocker (manufacturer 'MIWON', product name 'MIRAMER M301') 0.3 parts by weight, anti-aging agent (manufacturer 'JSC STERLITAMAK PETROCHEMICAL PLANT', product name 'BHT') 0.1 part by weight, vulcanization accelerator (manufacturer 'COSMOS CHEMICALS', product name 'COLINK 101-50D') 0.4 weight part and crosslinking agent (manufacturer 'ARKEMA', product name 'LUPEROX 231XL40-SP E') 1 part by weight for 15 minutes A rubber mixture was prepared by kneading.

Next, 20 parts by weight of the prepared coconut fiber was added to the rubber mixture, and mill dispersion was performed at a temperature of 80° C. for 15 minutes. Next, the dispersed composition was prepared in the form of a sheet at a temperature of 100 ° C., and then put in a mold mold to prepare an outsole through a press process at a temperature of 160 ° C. for 5 minutes, and then dried at room temperature for 7 days.

<Comparative Examples 1 to 3> Manufacture of outsoles with controlled coconut fiber content

In the composition of Example 1, only the coconut fiber content was adjusted to manufacture an outsole under the same conditions. At this time, the adjusted coconut fiber content was replaced with silica.

More specific composition and process for Example 1 and Comparative Examples 1 to 3 are specified in Table 1 below.

unit: parts by weight Example 1 Comparative Example 1 Comparative Example 2 Comparative Example 3 One polybutadiene rubber 38.3 38.3 38.3 38.3 2 elastomer 25.5 25.5 25.5 25.5 3 silica 15.3 35.3 25.3 5.3 4 Surfactants 0.2 0.2 0.2 0.2 5 UV blocker 0.3 0.3 0.3 0.3 6 antioxidant 0.1 0.1 0.1 0.1 7 Vulcanization accelerator 0.4 0.4 0.4 0.4 8 cross-linking agent 1.0 1.0 1.0 1.0 9 coconut fiber 20.0 - 10.0 30.0 10 process Mixing for 15 minutes → Mil dispersion at 80℃ for 15 minutes → Production of sheet shape at 100℃ → Press (mold) at 160℃ for 5 minutes → Drying at room temperature for 7 days

<Test Example 1> Non-slip test A

For the outsoles manufactured in Example 1 and Comparative Examples 1 to 3, the angle at which slip occurred was measured through a non-slip resistance tester, and the stage used at this time was moved based on the glass plate.

In relation to FIG. 2 is a test result for Example 1, FIGS. 3 to 5 show test results of Comparative Examples 1 to 3. More specific test results are specified in Table 2 below.

Example 1 Comparative Example 1 Comparative Example 2 Comparative Example 3 slip occurrence angle 70 49 55.5 62

As a result of the slip generation angle test, it was confirmed that Example 1, which preferably included coconut fibers, had slip properties at about 70 degrees, as shown in FIG. 2, and Comparative Example 1, which did not include coconut fibers, had slip properties at about 48.5 degrees. was measured to be In addition, in the case of Comparative Example 2 containing a small amount of coconut fiber, it was confirmed that the slip property occurred at about 55.5 degrees, and in the case of Comparative Example 3 containing an excessive amount of coconut fiber, the slip property was exhibited at about 62.0 degrees, In the case of an excessive amount, the non-slip effect was rather reduced.

Therefore, as a result, it was confirmed that Example 1 containing an appropriate amount of coconut fiber exhibited the best non-slip properties.

<Test Example 2> Non-slip test B

Based on Test Example 1, the outsoles prepared in Example 1 and Comparative Examples 1 to 3 were measured for dry and wet slip resistance values (coefficient of kinetic friction) in accordance with ASTM D 1894-11. More specific test results are specified in Table 3 below.

Unit: μ Example 1 Comparative Example 1 Comparative Example 2 Comparative Example 3 wet 2.41 1.83 2.06 2.23 deflation 1.25 0.52 0.85 1.12

According to the test results, Example 1 showed wet results of 2.41 and dry results of 1.25, while Comparative Example 1 showed wet results of 1.83 and dry results of 0.52, and when coconut fibers were included, wet results of 2.06 and dry results of 0.85. The numbers showed a slight improvement. However, in the case of Comparative Example 3 containing an excessive amount of coconut fiber, the values were 2.23 in wet and 1.12 in dry, which was confirmed to be lower than that of Example 1 containing an appropriate amount, showing the same results as Test Example 1.

Therefore, it was confirmed that there is an effect of increasing the slip resistance in wet and dry environments as the coconut fiber is adjusted in an appropriate amount.

<Test Example 3> Hardness test

Hardness values of the outsoles prepared in Example 1 and Comparative Examples 1 to 3 were measured according to KS M 6518: 2018 (A Type). More specific test results are specified in Table 4 below.

unit : - Example 1 Comparative Example 1 Comparative Example 2 Comparative Example 3 Hardness 60 63 62 57

According to the test results, Example 1 had a hardness of 60, Comparative Example 1 without coconut fiber showed a value of 63, and Comparative Example 2 with a small amount of coconut fiber had a hardness of 62. . On the other hand, in the case of Comparative Example 3 containing an excessive amount of coconut fiber, it was confirmed that the hardness rapidly decreased.

As a result, it was confirmed that the hardness of the outsole did not significantly decrease by adjusting the appropriate amount of coconut fiber.

<Test Example 4> Abrasion resistance test

Abrasion resistance values of the outsoles prepared in Example 1 and Comparative Examples 1 to 3 were measured according to KS M 6625:2018. More specific test results are specified in Table 5 below.

unit : % Example 1 Comparative Example 1 Comparative Example 2 Comparative Example 3 Wear resistance rate 325 411 363 298

According to the test results, in the case of Example 1, the wear resistance was confirmed to be 325%, and in the case of Comparative Example 1, the value was 411%. In addition, in the case of Comparative Example 2 containing a small amount of coconut fiber, the value was 363%, and in the case of Comparative Example 3, which contained an excessive amount, the value was less than 300, confirming that it was not suitable as an outsole.

Since the specific parts of the present invention have been described in detail above, various modifications and variations will be possible to those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention, but are intended to explain, and the scope of the technical idea of the present invention is not limited by these embodiments. The protection scope of the present invention should be construed according to the claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present invention.

Claims (5)

30 to 40 parts by weight of polybutadiene rubber, 20 to 30 parts by weight of elastomer, 15 to 20 parts by weight of filler, 20 to 30 parts by weight of coconut fiber, 0.1 to 1 part by weight of surfactant, 0.2 to 1 part by weight of vulcanization accelerator, and 0.5 to 1 part by weight of crosslinking agent Nonslip outsole composition containing coconut fiber, characterized in that it contains 2 parts by weight According to claim 1,
The coconut fiber is included in a length of 4 to 6 mm and is evenly dispersed / mixed in the outsole to have a non-slip property, a non-slip outsole composition containing coconut fiber According to claim 1,
A non-slip outsole composition containing coconut fiber, further comprising 0.1 to 1 part by weight of UV blocker and 0.1 to 1 part by weight of anti-aging agent Separating the coco peat part and the coconut fiber part to prepare a coconut fiber to remove foreign substances and crush the coconut;
Blending a non-slip outsole composition by mixing the prepared coconut fiber with a rubber binder mixture;
An outsole molding and processing step of manufacturing and processing the outsole shape by putting the blended outsole composition into a molding mold and molding it; And a step of cooling the molded and processed outsole and finishing the outsole to mature; a method for manufacturing a non-slip outsole including coconut fiber According to claim 4,
The step of blending the outsole composition is a non-slip outsole manufacturing method including coconut fiber, characterized in that dispersed at a temperature of 60 ~ 80 ℃

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